Line Thirteen has released Nuper 1.0 (http://www.linethirteen.com/nuper/) for Mac OS X. It requires Mac OS X 10.6 or higher, costs US$4.99, and is available worldwide exclusively through the Mac App Store in the News category.
Nuper lets you subscribe to your favorite blogs and keep tabs on all the latest headlines. A single click on any entry opens a new browser window and loads the chosen site for you. Nuper lists your favorite sites based on the time they were most recently updated.
You can read articles on the original website as was intended by the author, not in the confines of a news reader. To subscribe to a blog, type in the address of the RSS feed and Nuper will automatically subscribe to it. Don’t know the address of the RSS feed? Just type in the address of the blog itself and Nuper will figure out the RSS feed for you.